Valued Ecosystem Components (VEC) Impact Assessment Model

CityLiving uses threshold screening procedures in categorizing potential urban development impacts. For instance, threshold ‘measurements’ include population density, traffic, and noise pollution.

Impact Rating

0 = No Significant Impact 1 = Negligible Impact 2 = Minor Impact 3 = Moderate Impact 4 = Major Impact

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Average Im

pact R

ating

Environmental Component

Air Pollution 3 1 3 1 4 1 1 2

Soil Pollution 3 1 2 2 4 0 4 2.3

Heat Island Effect 4 3 1 2 4 2 4 2.9

Light Pollution 2 2 2 2 0 1 0 1.3

Noise Pollution 4 2 3 1 1 1 4 2.3

Spatial Fragmentation 3 2 4 1 1 1 4 2.3

Urban Infrastructure 1 1 2 1 1 1 3 1.4

Solid Waste Generation 4 4 1 3 1 0 4 2.4

Traffic 3 3 3 3 1 0 2 2.1

Socio-Economic Component

Population Density 2 4 4 4 1 2 3 2.8

Population Income 2 4 1 4 1 4 4 2.9

Employment Rate 4 4 4 3 3 3 3 3.4

Housing 2 2 3 4 1 2 4 2.9

Population Mobility 2 2 4 2 1 4 2 2.4

Neighborhood Identity 4 4 1 4 2 2 3 2.9